CN111256245A - Air purifying device - Google Patents

Air purifying device Download PDF

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Publication number
CN111256245A
CN111256245A CN202010197081.4A CN202010197081A CN111256245A CN 111256245 A CN111256245 A CN 111256245A CN 202010197081 A CN202010197081 A CN 202010197081A CN 111256245 A CN111256245 A CN 111256245A
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CN
China
Prior art keywords
air
filter screen
purification
purification assembly
air inlet
Prior art date
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Pending
Application number
CN202010197081.4A
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Chinese (zh)
Inventor
梁志坚
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010197081.4A priority Critical patent/CN111256245A/en
Publication of CN111256245A publication Critical patent/CN111256245A/en
Priority to PCT/CN2021/078428 priority patent/WO2021185060A1/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411Filter cartridges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66Regeneration of the filtering material or filter elements inside the filter
    • B01D46/80Chemical processes for the removal of the retained particles, e.g. by burning
    • B01D46/82Chemical processes for the removal of the retained particles, e.g. by burning with catalysts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters

Abstract

The invention discloses an air purification device, relates to the technical field of air purification, and solves the technical problems that in the prior art, part of pollutants are left on a filter screen of purification equipment due to purification equipment and/or purification methods, so that not only bacteria are bred, but also secondary pollution to the environment can be caused. The air purification device comprises an air inlet, a purification assembly and a shell, wherein the shell is of a sealing structure, the purification assembly is positioned in the shell, and one end of the purification assembly is connected with the air inlet, so that air entering through the air inlet can be decomposed and/or pollutants are eliminated through the purification assembly and then discharged. According to the air purification device, pollutants in the air are decomposed and/or eliminated through the purification assembly, so that the pollutants cannot remain on the filter screen, bacteria cannot grow, and secondary pollution to the environment cannot be caused.

Description

Air purifying device
Technical Field
The invention relates to the technical field of air purification, in particular to an air purification device.
Background
Aiming at pollutants such as particulate matters, organic compounds (VOC), nitrogen oxides, bacteria, viruses and the like in the air, the conventional air purification method mainly adopts a multiple filtration adsorption method and a removal method to remove the pollutants in the air. Specifically, in the prior art, air passes through a primary filter screen to block large pollutants such as dandruff, clothing fibers and the like; adsorbing fine contaminants such as dust, PM2.5 particles, bacteria, viruses, etc. through a second layer of HEPA screen; removing peculiar smell through a third layer of active carbon; organic compounds, nitrogen oxides, bacteria, viruses and the like which are not adsorbed by the HEPA filter screen are eliminated through the last layer of negative ions, photocatalyst or UVC.
The applicant has found that the existing air purification devices have the following drawbacks: (1) part of bacteria and viruses are adsorbed by a HEPA filter screen, and negative ions, photocatalyst, static electricity or UVC can only eliminate pollutants which are not adsorbed by the filter screen; (2) after the purifying equipment is used for a long time, viruses, bacteria, moisture and particles are attached to and gathered on the filter screen to be propagated, and the filter screen becomes a hotbed of the bacteria; (3) when the filter screen is replaced or the equipment does not work for a long time, pollutants attached to the filter screen can be released into the environment from the purifying equipment, and secondary pollution is caused to the environment. Research shows that the concentration of ozone released by UVC is higher than 0.1ppm, which causes harm to human body.
Therefore, in the prior art, the purifying equipment and/or the purifying method cause part of pollutants to remain on the filter screen of the purifying equipment, so that not only bacteria are bred, but also secondary pollution to the environment can be caused. Therefore, providing a new air purification device to solve the problem of the remaining pollutants is an urgent technical problem for those skilled in the art.
Disclosure of Invention
One of the purposes of the present invention is to provide an air purification device, which solves the technical problem that part of pollutants remain on the filter screen of the purification device, not only bacteria are bred, but also secondary pollution to the environment is caused by the purification device and/or the purification method in the prior art. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.
In order to achieve the purpose, the invention provides the following technical scheme:
the air purification device comprises an air inlet, a purification assembly and a shell, wherein the shell is of a sealing structure, the purification assembly is positioned in the shell, one end of the purification assembly is connected with the air inlet, and therefore air entering through the air inlet can be decomposed and/or pollutants are eliminated through the purification assembly and then discharged.
According to a preferred embodiment, the air purification device further comprises an air outlet, and the air outlet is located at one end of the purification assembly, which is far away from the air inlet, so that air with pollutants removed by the purification assembly can be discharged through the air outlet.
According to a preferred embodiment, the purification assembly is of cylindrical construction.
According to a preferred embodiment, the purification assembly comprises a filter screen, a photocatalyst coating and an ultraviolet lamp, wherein the photocatalyst coating is located on the inner surface of the filter screen, the ultraviolet lamp is located in the filter screen, and the ultraviolet lamp is used for activating the photocatalyst coating, so that air entering through the air inlet can be discharged after being purified through the photocatalyst coating and the filter screen.
According to a preferred embodiment, the thickness of the photocatalyst coating is 5 to 50 μm.
According to a preferred embodiment, the filter screen is a cylindrical structure, and one end of the filter screen is connected with the air inlet, and the other end of the filter screen is sealed, so that the air purified by the photocatalyst coating and the filter screen can be discharged from the side surface of the filter screen.
According to a preferred embodiment, the inside of the screen is formed as a space to be purified, the outside of the screen is formed as a purification space, and the air pressure of the space to be purified is higher than the air pressure of the purification space.
According to a preferred embodiment, the air purification device further comprises a fan, the fan is positioned between the air inlet and the purification component, so that the external air is introduced into the purification component through the action of the fan; or the air purification device further comprises an exhaust fan, wherein the exhaust fan is positioned between the purification assembly and the air outlet so as to exhaust the purified air in the purification space under the action of the exhaust fan.
According to a preferred embodiment, the air purification device further comprises a beam wind pipe, one end of the beam wind pipe is connected with the fan, and the other end of the beam wind pipe is connected with the purification assembly, so that air introduced by the fan is guided into the purification assembly through the action of the beam wind pipe; or one end of the air-bundling pipe is connected with the air inlet, and the other end of the air-bundling pipe is connected with the purification component, so that the air passing through the air inlet is guided into the purification component under the action of the air-bundling pipe.
According to a preferred embodiment, the size of the end of the beam air pipe connected with the fan is equivalent to that of the fan, and the size of the end of the beam air pipe connected with the purification assembly is equivalent to that of the purification assembly; or the size of one end of the beam air pipe connected with the air inlet is equivalent to that of the air inlet, and the size of one end of the beam air pipe connected with the purification assembly is equivalent to that of the purification assembly.
The air purification device provided by the invention at least has the following beneficial technical effects:
the air purification device comprises an air inlet, a purification assembly and a shell, wherein the shell is of a sealing structure, the purification assembly is positioned in the shell, and one end of the purification assembly is connected with the air inlet, so that air entering through the air inlet can be decomposed and/or pollutants are eliminated through the purification assembly and then discharged. According to the air purification device, in the process of purifying air, pollutants cannot remain on the filter screen or in the device, and secondary pollution cannot be caused; the filter screen can be washed or replaced without contacting with pollutants.
According to the air purification device, pollutants in the air are decomposed and/or eliminated through the purification assembly, so that the pollutants cannot remain on the filter screen, bacteria cannot grow, secondary pollution to the environment cannot be caused, and the technical problem that part of pollutants remain on the filter screen of the purification equipment, bacteria cannot grow, and secondary pollution to the environment can be caused in the purification equipment and/or the purification method in the prior art is solved.
In addition, the preferable technical scheme of the invention also has the following beneficial technical effects:
according to the preferred technical scheme, the inner surface of the filter screen is coated with the photocatalyst coating, and the ultraviolet lamp for activating the photocatalyst coating is arranged in the filter screen, so that the purification assembly of the preferred technical scheme can decompose and/or eliminate pollutants adsorbed on the filter screen through the photocatalyst coating activated by the ultraviolet lamp, and the pollutants can not remain on the filter screen.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a preferred embodiment of the air purification apparatus of the present invention;
fig. 2 is a schematic view of a preferred embodiment of the screen of the present invention.
In the figure: 1. an air inlet; 2. a housing; 3. an air outlet; 4. filtering with a screen; 5. a photocatalyst coating; 6. an ultraviolet lamp; 7. a space to be purified; 8. purifying the space; 9. a fan; 10. a beam air pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The air cleaning device of the present embodiment will be described in detail with reference to fig. 1 and 2 of the specification.
The air cleaning device of the present embodiment includes an air inlet 1, a cleaning assembly and a housing 2, as shown in fig. 1. Wherein, casing 2 is seal structure to purify the subassembly and be located casing 2, purify the one end of subassembly and be connected with income wind gap 1, make the air that gets into through going into wind gap 1 can discharge again after decomposing and/or eliminating the pollutant through purifying the subassembly.
The air purification device of this embodiment, including income wind gap 1, purification subassembly and casing 2, casing 2 is seal structure to purification subassembly is located casing 2, and purification subassembly's one end is connected with income wind gap 1, makes the air that gets into through income wind gap 1 can discharge again after the purification subassembly decomposes and/or eliminates the pollutant. In the air purification device of the embodiment, in the process of purifying air, pollutants cannot remain on the filter screen 4 or in the device, and secondary pollution cannot be caused; no contamination is encountered when the screen 4 is flushed or replaced.
The air purification device of this embodiment decomposes and/or eliminates the pollutant in with the air through purifying the subassembly promptly for the pollutant can not remain on the filter screen, thereby can not breed the bacterium, also can not cause secondary pollution to the environment, has solved prior art's clarification plant and/or purification method and has caused partial pollutant to remain on clarification plant's filter screen, not only breeds the bacterium, also can cause secondary pollution's technical problem to the environment.
According to a preferred embodiment, the air cleaning device further comprises an air outlet 3, as shown in fig. 1. Preferably, the air outlet 3 is located at one end of the purifying assembly far away from the air inlet 1, so that air with pollutants removed by the purifying assembly can be discharged through the air outlet 3.
According to a preferred embodiment, the purification assembly is of cylindrical construction. The purification component of the preferred technical scheme of this embodiment is a cylindrical structure for purification component has great purification area.
According to a preferred embodiment, the purification assembly comprises a filter screen 4, a photocatalyst coating 5 and an ultraviolet lamp 6, as shown in fig. 1. Wherein, photocatalyst coating 5 is located the internal surface of filter screen 4, and ultraviolet lamp 6 is located filter screen 4 to ultraviolet lamp 6 is used for activating photocatalyst coating 5, makes the air that gets into through income wind gap 1 discharge after can purifying through photocatalyst coating 5 and filter screen 4. Preferably, the thickness of the photocatalyst coating 5 is 5 to 50 μm. The thickness of the photocatalyst coating 5 in the preferred technical scheme of the embodiment is 5-50 μm, and pollutants in the air inside the filter screen 4 can be effectively decomposed and/or eliminated.
The preferred technical scheme of this embodiment has photocatalyst coating 5 at the inner surface coating of filter screen 4 to be provided with the ultraviolet lamp 6 that is used for activating photocatalyst coating 5 in filter screen 4, make the subassembly that purifies of this embodiment preferred technical scheme can decompose and/or eliminate the pollutant that adsorbs on filter screen 4 through photocatalyst coating 5 that ultraviolet lamp 6 activated, thereby make the pollutant can not remain on filter screen 4.
That is, the purifying assembly of the preferred technical solution of this embodiment, through the filter screen 4 and the photocatalyst coating 5 coated on the inner surface of the filter screen 4 and activated by the ultraviolet lamp 6, can adsorb and decompose and/or eliminate the pollutants in the air inside the filter screen 4 at the same time, so that the pollutants will not remain on the filter screen 4. That is, the purifying assembly of the preferred technical scheme of this embodiment can adsorb, decompose and/or eliminate pollutants in the air inside the filter screen 4 at the same time, and as can be seen, this kind of purifying method of the purifying assembly of the preferred technical scheme of this embodiment is different from the method of adsorbing pollutants in the air through the filter screen first in the prior art, and then eliminating pollutants such as organic compounds, nitrogen oxides, bacteria and viruses that are not adsorbed by the filter screen through negative ions, photocatalyst or UVC.
According to a preferred embodiment, the screen 4 is of cylindrical configuration, as shown in figure 2. Preferably, one end of the filter screen 4 is connected to the air inlet 1, and the other end of the filter screen 4 is sealed, so that the air purified by the photocatalyst coating 5 and the filter screen 4 can be discharged from the side of the filter screen 4. As shown in fig. 1, one end of the filter screen 4 connected with the air inlet 1 is provided with an opening, so that air entering through the air inlet 1 can enter the filter screen 4; the end of the filter screen 4 far away from the air inlet 1 is sealed, so that the discharge of unpurified air through the end of the filter screen 4 far away from the air inlet 1 is avoided. The filter screen 4 of the preferred technical scheme of this embodiment is a cylindrical structure, and outside air enters the inside of the filter screen 4 through the air inlet 1, and is purified through the filter screen 4 and the photocatalyst coating 5 coated on the inner surface of the filter screen 4, and because the other end of the filter screen 4 is sealed, purified air can only be discharged from the side surface of the filter screen 4, that is, the purified air is discharged to the area between the filter screen 4 and the casing 2 through the side surface of the filter screen 4, and then is discharged to the outside through the air outlet 3.
According to a preferred embodiment, the inside of the screen 4 is formed as a space 7 to be cleaned, the outside of the screen 4 is formed as a space 8 to be cleaned, and the air pressure of the space 7 to be cleaned is higher than the air pressure of the space 8 to be cleaned. The inner side of the filter screen 4 in the preferred technical scheme of the embodiment refers to the side coated with the photocatalyst coating 5, namely the side of the filter screen 4 far away from the shell 2; the outer side of the sieve 4 refers to the side of the sieve 4 close to the housing 2. After external air enters the filter screen 4 through the air inlet 1, a space 7 to be purified is formed on the inner side of the filter screen 4; the air is discharged after being purified by the filter screen 4 and the photocatalyst coating 5 coated on the inner surface of the filter screen 4, and a purification space is formed outside the filter screen 4. Preferably, the air pressure of the space to be purified 7 is higher than the air pressure of the purification space 8, and the air in the space to be purified 7 can continuously pass through the filter screen 4 coated with the photocatalyst coating 5 under the pushing action of the pressure, and is discharged from the side surface of the filter screen 4 after being purified.
According to a preferred embodiment, the air cleaning device further comprises a fan 9, as shown in fig. 1. Preferably, a fan 9 is located between the air inlet 1 and the purification assembly to introduce external air into the purification assembly by the action of the fan 9. The preferred technical scheme of this embodiment is through the effect of fan 9, can be with outside air continuous introduction to purify the processing in the purification subassembly. Or the air cleaning device further comprises an exhaust fan (not shown in the figures). Preferably, the exhaust fan is located between the purification assembly and the air outlet 3 to exhaust the purified air in the purification space 8 by the action of the exhaust fan. The air that purifies in the space 8 is constantly taken out through the air exhauster to the preferred technical scheme of this embodiment to can impel outside air that waits to purify constantly to get into in the purification component from the income wind gap 1. That is, the preferred technical scheme of this embodiment can send into the air that waits to purify in the purification subassembly through the fan initiative, also can send into the air that waits to purify in the purification subassembly through the air exhauster is passive. The device for discharging air in the purification space 8, which is arranged at the air outlet 3 in the preferred technical scheme of the embodiment, is not limited to an exhaust fan, but also can be a fan, and the principle of the device is similar to that of a range hood in the prior art.
According to a preferred embodiment, the air cleaning device further comprises a beam pipe 10, as shown in fig. 1. One end of the air beam pipe 10 is connected with the fan 9, and the other end of the air beam pipe 10 is connected with the purification assembly, so that air introduced by the fan 9 is guided into the purification assembly through the action of the air beam pipe 10. Or one end of the air-bundling pipe 10 is connected with the air inlet 1, and the other end of the air-bundling pipe 10 is connected with the purification component, so that the air passing through the air inlet 1 is guided into the purification component through the action of the air-bundling pipe 10.
Preferably, the size of the end of the beam pipe 10 connected with the fan 9 is equivalent to the size of the fan 9, and the size of the end of the beam pipe 10 connected with the purification assembly is equivalent to the size of the purification assembly. Or the size of the end of the beam air pipe 10 connected with the air inlet 1 is equivalent to that of the air inlet 1, and the size of the end of the beam air pipe 10 connected with the purification component is equivalent to that of the purification component.
As shown in fig. 1, the beam pipe 10 is flared. In the preferred technical solution of this embodiment, the size of the end of the air-bundling pipe 10 connected with the fan 9 is equivalent to the size of the fan 9, and the size of the end connected with the filter screen 4 is equivalent to the size of the filter screen 4, so that the air introduced by the fan 9 can be completely introduced into the filter screen 4, so that the whole air introduced into the purifying device can be purified.
Another aspect of the present embodiment also provides an air purification method. The air purification method of the present embodiment is completed by using the air purification device according to any one of the technical solutions of the present embodiment.
Preferably, the air purification method of the present embodiment includes the steps of:
s1: and starting the air purification device and introducing air to be purified. Preferably, the external air to be purified is introduced inside the sieve 4 through the air inlet 1, the fan 9 and the beam pipe 10.
S2: decomposing and/or eliminating contaminants in the air to be purified. Preferably, the air to be purified, which enters the inside of the filter screen 4, passes through the filter screen 4 coated with the photocatalyst coating 5 on the inner surface, and the pollutants in the air to be purified are adsorbed on the filter screen 4 and simultaneously decomposed and/or eliminated by the photocatalyst coating 5.
S3: the purified air is discharged. Preferably, the air purified by the photocatalyst coating 5 and the filter screen 4 is discharged to the purifying space 8 through the side surface of the filter screen 4, and the air in the purifying space 8 is discharged to the outside of the air purifying device through the air outlet 3.
The purification method of this embodiment adsorbs and decomposes and/or eliminates the pollutant in the air inside filter screen 4 simultaneously through photocatalyst coating 5 and filter screen 4 for the pollutant can not remain on filter screen 4, thereby can not breed the bacterium, also can not cause secondary pollution to the environment, it causes partial pollutant to remain on purification equipment's filter screen to have solved prior art's clarification plant and/or purification method, not only breed the bacterium, also can cause secondary pollution's technical problem to the environment.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The air purification device is characterized by comprising an air inlet (1), a purification assembly and a shell (2), wherein the shell (2) is of a sealing structure, the purification assembly is located in the shell (2), and one end of the purification assembly is connected with the air inlet (1), so that air entering through the air inlet (1) can be decomposed and/or pollutants are eliminated through the purification assembly and then discharged.
2. The air purification device according to claim 1, further comprising an air outlet (3), wherein the air outlet (3) is located at an end of the purification assembly away from the air inlet (1), so that air with contaminants removed by the purification assembly can be discharged through the air outlet (3).
3. The air purification apparatus of claim 1, wherein the purification assembly is a cylindrical structure.
4. Air cleaning device according to one of claims 1 to 3, characterized in that the cleaning component comprises a filter screen (4), a photocatalyst coating (5) and a UV lamp (6), wherein,
the photocatalyst coating (5) is positioned on the inner surface of the filter screen (4), the ultraviolet lamp (6) is positioned in the filter screen (4), and the ultraviolet lamp (6) is used for activating the photocatalyst coating (5),
so that the air entering through the air inlet (1) can be purified through the photocatalyst coating (5) and the filter screen (4) and then discharged.
5. The air cleaning device according to claim 4, wherein the photocatalyst coating (5) has a thickness of 5 to 50 μm.
6. The air cleaning device according to claim 4, wherein the filter screen (4) is a cylindrical structure, and one end of the filter screen (4) is connected to the air inlet (1), and the other end of the filter screen (4) is sealed, so that the air cleaned by the photocatalyst coating (5) and the filter screen (4) can be discharged from the side of the filter screen (4).
7. Air cleaning device according to claim 6, characterized in that the inside of the sieve (4) is formed as a space (7) to be cleaned, the outside of the sieve (4) is formed as a cleaning space (8), and the air pressure of the space (7) to be cleaned is higher than the air pressure of the cleaning space (8).
8. The air purification apparatus according to claim 1, further comprising a fan (9), the fan (9) being located between the air inlet (1) and the purification assembly to introduce outside air into the purification assembly by the action of the fan (9); or is
Still include the air exhauster, the air exhauster is located purify between subassembly and air outlet (3) to through the effect of air exhauster is with purifying the air-out after the space (8) is purified.
9. Air cleaning device according to claim 8, further comprising a beam pipe (10),
one end of the air beam pipe (10) is connected with the fan (9), and the other end of the air beam pipe (10) is connected with the purification assembly, so that air introduced by the fan (9) is guided into the purification assembly under the action of the air beam pipe (10); or is
One end of the air beam pipe (10) is connected with the air inlet (1), and the other end of the air beam pipe (10) is connected with the purification assembly, so that air passing through the air inlet (1) is guided into the purification assembly through the action of the air beam pipe (10).
10. The air cleaning device according to claim 9, wherein the dimension of the end of the beam pipe (10) connected with the fan (9) is equivalent to the dimension of the fan (9), and the dimension of the end of the beam pipe (10) connected with the cleaning component is equivalent to the dimension of the cleaning component; or is
The size of one end, connected with the air inlet (1), of the beam air pipe (10) is equivalent to that of the air inlet (1), and the size of one end, connected with the purification assembly, of the beam air pipe (10) is equivalent to that of the purification assembly.
CN202010197081.4A 2020-03-19 2020-03-19 Air purifying device Pending CN111256245A (en)

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CN202010197081.4A CN111256245A (en) 2020-03-19 2020-03-19 Air purifying device
PCT/CN2021/078428 WO2021185060A1 (en) 2020-03-19 2021-03-01 Air purification device

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Application Number Priority Date Filing Date Title
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